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HD Quiz powered by harmonic design
#1. The lowest temperature in the international standard atmosphere (ISA) is?
#2. MSA given as 12,000ft, flying over mountains in temperatures +9°C, QNH set as 1023 (obtained from a nearby airfield). What will the true altitude be when 12,000ft is reached?
#3. Which frontal or occlusion system is the fastest moving?
#4. Why do TRS not occur in the SE Pacific and South Atlantic?
#5. From the pre-flight briefing you know a jet stream is at 31000 ft whilst you are at FL270. You experience moderate C.A.T, what would be the best course of action?
#6. In the Northern Hemisphere a man observes a low pressure system passing him to the south, from west to east. What wind will he experience?
#7. On a significant weather chart you notice a symbol with the letter “H” and the number “400” inside. What does this imply?
#8. When would a rotor cloud be ahead of a Cb?
#9. You are at 12,000 ft (FL120) with an outside air temperature is -2°C. Where would you find the freezing level?
#10. What are the conditions under which advection fog will be formed?
#11. How does a polar front depression normally move?
#12. What cloud does hail fall from?
#13. Flying away from a low pressure at low levels in the Southern Hemisphere, where is the wind coming from?
#14. What is a cold pool, in the northern hemisphere?
#15. The ITCZ in July is?
#16. What is Relative Humidity dependent upon?
#17. If the ELR is 0.65°C/100m
#18. Using the diagram shown, what cross section is through an occluded front?
#19. What is true about the dew point temperature?
#20. Where are you most likely to find moderate to severe icing?
#21. What kind of weather system might you typically find between the 45° - 70°N?
#22. Height of the tropopause at 50° N
#23. What is true regarding super cooled water droplets?
#24. What are the indications of a TRS from a great distance?
#25. What is most different about the Equatorial Easterly jet stream?
#26. Flying from London to Bombay in January, what average wind might you expect?
#27. Flying towards a warm front, at what distances might you expect the following cloud types from the surface position of the front?
#28. What pressure systems affect the North Atlantic in summer?
#29. Wind is caused by?
#30. A characteristic of a stable air mass
#31. What weather might you expect behind a fast moving cold front?
#32. How do you recognise high level jet streams and associated CAT?
#33. How would an unstable atmosphere likely reduce the visibility?
#34. Which conditions lead to mountain waves?
#35. Which is true regarding a polar front jet stream?
#36. Where is the coldest air in a cold occlusion?
#37. Which of the following indicates upper level instability and possible the formation of TS?
#38. What causes low level cloud in front of the warm front?
#39. When are the north Atlantic lows at their most southerly position?
#40. Where is the largest chance of squalls occurring?
#41. A layer of air cooling at the SALR compared to the DALR would give what kind of cloud?
#42. ELR is 1ºC/100m
#43. For the same pressure gradient at 50N, 60N and 40N, the geostrophic wind speed is?
#44. Typical tornado diameter
#45. What is a SPECI?
#46. In the area of the ITCZ why are the heights of the tropopause not reported?
#47. A parcel of air cooling by more than 1°C/100m is said to be?
#48. Flying condition in Ci cloud and horizontal visibility
#49. Description of radiation fog
#50. The wind in the Northern Hemisphere at the surface and above the friction layer at 2000 ft would be?
#51. Where are easterly and westerly jets found?
#52. Flying over an airfield, at the surface the temp is -5ºC, freezing level is at 3000ft, rain is falling from clouds with a base of 4000ft caused by warm air rising above cold air. When would you experience icing?
#53. Which weather phenomena are typical for the north side of the alps with stormy winds from the south (Foĕhn?)
#54. Climbing out of Dhahran, Saudi Arabia on a clear night you suddenly lose your rate of climb. Why?
#55. At 15,000ft in nimbostratus cloud with an outside air temperature of -12°C, what icing might you expect?
#56. What is the composition of Ci cloud?
#57. Comparing rain to drizzle, visibility will generally…?
#58. What cloud types are classified as medium cloud?
#59. What statement is true regarding the tropopause?
#60. What is the approximate height of the tropopause at 50ºN?
#61. Please refer to Appendix F (attached on the next page) What is the temperature deviation, in degrees Celsius, from the International Standard Atmosphere overhead Frankfurt (50N 08E) at FL 180 ?
#62. Isolated TS occur mostly due to
#63. Polar front depression normally move
#64. What type of cloud is associated with drizzle?
#65. QNH in a METAR is
#66. Fair weather cumulus gives an indication of
#67. Thermal lows usually develop
#68. What cloud type are you least likely to get icing from?
#69. TAF’s are usually valid for
#70. When flying from South to North in the Southern Hemisphere crossing over and above a polar frontal jet at FL 400, what might happen to the OAT?
#71. Tornadoes are usually associated with which cloud type
#72. What type of jet stream blows constantly through the northern hemisphere?
#73. Wind at altitude is usually given as …….. in ……..
#74. Why is clear ice such a problem?
#75. The surface wind circulation found between the sub tropical highs and the equatorial lows are called?
#76. What best shows Altocumulus Lenticularis?
#77. An occlusion is mimicking a cold front, where would the coldest air be found?
#78. A steep pressure gradient is characterised by
#79. In a high pressure systems
#80. Assuming a generalised zonal distribution of winds, which zones on the diagram contain the temperate lows?0
#81. Over flat dry land what would cause cloud?
#82. Where does freezing rain come from?
#83. What type of icing requires immediate diversion?
#84. Without the ability to de-ice or land immediately, what should you do if you encounter rain ice at about 2,000ft?
#85. What is the weather inside the warm sector in a frontal depression in central Europe?
#86. If you fly with left drift in the Northern Hemisphere, what is happening to your true altitude?
#87. What is the feature W?
#88. Flying from Dakar to Rio de Janeiro, where is the ITCZ in winter?
#89. Using the picture shown above, what will be expected to happen to the surface pressure after the feature Y has passed?
#90. At a stationary front
#91. A man is flying East to West in the Northern Hemisphere. What is happening to his altitude?
#92. In central Europe, where are the greatest wind speeds?
#93. Up to FL180 ISA Deviation is ISA -10°C. What is the actual depth of the layer between FL60 and FL120?
#94. Sublimation is
#95. In central Europe in summer, under the influence of a polar depression in a wide warm sector, you would expect the following wx:
#96. Standing in the Northern Hemisphere, north of a polar frontal depression travelling west to east, the wind will
#97. An Easterly wave will produce:
#98. What is the coldest time of the day?
#99. The line connecting A to B crosses what pressure system:
#100. Which of the following would lead to the formation of Advection fog
#101. Which coast of the USA is affected by the most frequent hurricanes:
#102. Using the radiosonde diagrams, which would most likely show ground fog?
#103. Flying over France at dawn, with 8/8 St at 200ft, QNH 1026, wind Var3, what will be the most likely conditions at mid-day in winter and summer:
#104. Which of the following would lead to the formation of Steaming fog
#105. What do the following one hour interval METARS indicate the passage of: 22010KT 9999 SCT200 14/08 Q1012= 22010KT 9999 OVC200 13/08 Q1011= 23012KT 9KM SCT 060 OVC120 13/08 Q1010= 24012KT 8KM -RA BKN040 OVC090 12/08 Q1009= 25015KT 2000 +RA SCT002 OVC008 12/08 Q1008= 27015KT 0800 DZ BKN002 OVC010 17/16 Q1008= 27015KT 0800 DZ BKN002 OVC010 17/16 Q1008= 27015G30KT 1000 +SHRA TS OVC010 17/16 Q1008= 29020KT 9000 SHRA BKN020 14/07 Q1010= 31020KT 9999 SCTO30 13/07 Q1012=
#106. When is diurnal variation a maximum?
#107. Paris reports OVC 8/8 St at +3 ° C during the day. What will happen on the night of 3/4 Jan
#108. QNH at Timbuktu (200m AMSL) is 1015 hPa. What is the QFE? (Assume 1 hPa = 8m)
#109. With a cold front over the North Sea, what weather would you expect 300km behind the front?
#110. The Arctic Jet core is at:
#111. Surface wind is 320/12 what is the wind at 2000ftin the Northern hemisphere?
#112. If flying cross country at FL50 you first see NS, AS, CC then CI, you can expect:
#113. Which is likely to cause aquaplaning?
#114. Lucarno airfield elv 1735 ft altimeter indicates 1310 ft with 1013hPa set what is the QNH?
#115. Where is the ITCZ in July?
#116. Prevailing winds in North West. Africa will be
#117. The letters NC used at the end of a SIGMET, mean:
#118. ATC will only report wind as gusting if:
#119. On the route London to Bombay, which feature would you most likely encounter between 30E and 50E
#120. Hill fog will be most likely when:
#121. When would the strongest convection occur?
#122. In temperate latitudes in summer what conditions would you expect in the centre of a high pressure system?
#123. Which way does a depression move?
#124. Above a stable layer in the lower troposphere in an old high pressure system is called:
#125. Freezing rain is most likely from
#126. If the pressure level surface bulges upwards, the pressure system is a:
#127. With regard to RVR and Met vis
#128. What is a land breeze?
#129. When are thermal lows most likely
#130. When travelling from Stockholm (55N 18E) to Rio de Janeiro (22S 80W), do you encounter:
#131. What is the validity of a significant weather chart
#132. Why does air cool as it rises?
#133. What is the main feature of the initial stage of a thunderstorm
#134. When flying at FL180 in the Southern Hemisphere you experience a left crosswind. What is happening to your true altitude if indicated altitude is constant?
#135. What is haze?
#136. In a polar front jet stream in the Northern Hemisphere, where is there likely to be the greatest probability of turbulence?
#137. On the chart below, where is rain least likely
#138. Dew point is defined as:
#139. On a flight from Zurich to Rome, which of the following METARS would be applicable?
#140. Flying from Marseilles (QNH 1012) to Palma (QNH 1015) at FL100. You dont reset the altimeter, why would true altitude be the same throughout the flight?
#141. Which of the following is true about freezing precipitation?
#142. FL180, Northern Hemisphere with a wind from the left, what can you say about temperature with a heading of 360°?
#143. What do the letters NO SIG mean at the end of a METAR
#144. From which of the following can the stability of the atmosphere be determined?
#145. How do you define convection?
#146. What is a trend forecast
#147. How does clear ice form?
#148. In a class A aircraft if you encounter freezing rain, do you:
#149. Where is windshear the greatest?
#150. When heading South in the Southern Hemisphere you experience Starboard drift:
#151. FMC is operating in VNAV and LNAV modes. Reaches a Wpt beyond which no route has been fed. What will happen?
#152. In FMS the CDU's are used during pre-flight to:
#153. Maximum difference between Mean Noon and Apparent Noon is in the months:-
#154. Nautical twilight begins and Civil twilight ends when the center of Sun is:-
#155. An a/c is flying from A to B. In cruise the CAS is 150 kts, TAS 180 kts & average ground speed is 210 kts. The speed box of filed flight plan plan shall indicate:
#156. The purpose of Decision Point Procedure (DPP) is:
#157. The most important property a projection should possess for navigation is:
#158. Sidereal day is defined as the length of time taken by 360° rotation of the Earth about its axis between two successive transits of a meridian with reference to:-
#159. What is the formula for Conversion angle?
#160. In ATS flight plan item 15, when entering route for which SID & STAR procedures exist:
#161. How does FMS calculate the G/Speed?
#162. When the Sun's declination is Northerly:
#163. Diameter of the Earth is approximately:
#164. In flight the INS is accidentally switched OFF. It is switched ON again. After this incident the INS:
#165. How is FMC position calculated?
#166. What measurement is used to carry out alignment of INS?
#167. In the event of a delay in excess of ....... of .....for a controlled flight or a delay of ........ for an uncontrolled flight for which a flight plan has been submitted ; the flight plan should be amended or a new flight plan submitted & the old flight plan cancelled whichever is appropriate:
#168. In order to fly from position 'A' 10°N 30° W to 'B' 30° N 50°W maintaining a constant true track, it is necessary to fly:-
#169. A magnetic compass needle is freely suspended in the Earth's magnetic field.When free from extraneous magnetic influence it will align itself with:
#170. Mark the correct statement:
#171. In INS at the second stage of integration of E/W speed is converted into distance gone. To convert departure into change of longitude it has to:
#172. Crossing IDL on Easterly track:-
#173. An island is observed to be 15* to the left, a/c Hdg is 120*(M), Var. 17*W. true bearing from a/c to the island is :
#174. Item 7 of the flight plan in accordance with PANS-RAC (DOC4444) should always include, for an a/c equipped with a ratio:
#175. In ATS flight plan item 15, in order to define a position from VOR, it should consist
#176. If decision point procedure is applied for flight planning:
#177. FMC position will be at its most inaccurate :
#178. The angular difference between the geographic meridian and magnetic meridian running through the same position is called:
#179. What is the convergency between 'A' 80°N 15° E and 'B' 80° N 15° W on the Earth and the Polar Streographic chart? Earth Polar
#180. You have calculated PNR for a flight having all negative WC. During flight you experience WC is stronger but coming from the same direction. Mark correct statement:
#181. During a low level flight two parallel roads are crossed at right angles. The crossing time between these two roads can be used to find a/c's:
#182. On a M. Chart. G.C is curve concave to the :
#183. Chart convergency on P.Stereographic is in general:
#184. Polar chart convergency and Earth convergency is correct at:
#185. On an ATC flight plan the letter "Y" is used to indicate that the flight is carried out under following flight rules:
#186. In appropriate box of ATC flight plan the endurance must indicate the time corresponding to:
#187. An a/c is accelerating on a westerly Hdg in the NH, the effect on DRMC is:
#188. Function of INS stable platform is to:
#189. An FMS is:
#190. In SH the effect of acceleration errors is greatest on headings:
#191. A/c magnetism caused by hard iron:
#192. Angular difference on Lambert chart between the arrival and departure track is equal to:-
#193. Length of Sidereal year is:
#194. When is the DRMC most effective?
#195. Where do Isogonal lines converge?
#196. What is the effect on DRMC when a/c accelerates in Westerly direction on the equator?
#197. Platform of INS is maintained at right angles to the local vertical by applying corrections of :-
#198. Which mode selection on CDU of INS is required to display initial G.C. track?
#199. On triple IRS, the present position on the CDU:
#200. ATT mode in IRS is a back up mode providing:
#201. On a Lambert chart a straight line can be approximated to:
#202. On a Lambert chart the standard parallels are located at 50 deg N & 62 deg N. What is the latitude of parallel of origin?
#203. What is the source of variation information in INS/IRS?
#204. In Lambert orthomorphic projection, the scale is:
#205. Which of the following navigation system can be utilized as a sole independent means of navigation?
#206. When can a Pilot change data in FMS database?
#207. What is the meaning of Standard time?
#208. Aircraft position determined by radio navigation by FMC is derived from:
#209. An aircraft Approach Category is calculated on the basis of:-
#210. Airspeeds mentioned for approach category are:
#211. In order to convert True HDG to Mag. HDG a compass card and
#212. To calculate the LMT at place, reference is always taken from:
#213. Gyro-compassing in an INS:
#214. Which of the following alternative is correct when you cross IDL?
#215. Magnetic compass calibration is carried out to reduce:
#216. The zero fuel mass is:
#217. What is the definition of EAT?
#218. Flying from East to West longitude. On crossing IDL:
#219. Aircraft flies Wpt 5 53N 50W to Wpt 6 53N 40W with autopilot coupled to INS. When crossing 45W the latitude indicated by INS will be:
#220. During initialization of INS the aircraft should not be moved until the
#221. At what time of the year the length of the day light hours change most rapidly:
#222. Double integration of output from E/W accelerometers in INS in NAV mode gives:
#223. Track 020 (T). W/V 220/30. TAS 250kts. Mean fuel flow 8200 Kg/hr. Calculate GFF.
#224. At TAS of 500 kts ram rise of air temperature can be expected of:
#225. In Earth magnetic field, the following quantities are given to H & Z components:
#226. Three components of permanent magnetism are:
#227. In turns about East & West , E-type compass reading errors are:
#228. Principle of Schuler tuning is applicable to:
#229. In ATC VFR flight plan, the total estimated time is:
#230. An INS with accelerometers aligned N/S & E/W is limited to use below 82*N/S b'coz:
#231. A time difference of 5hrs 20 minutes & 20 seconds is equivalent to D'long of:
#232. A Rumbh line cuts all meridians at the same angle. This gives:
#233. What is the approximate circumference of the Earth?
#234. When initial position is put into an INS:
#235. When computing weight & balance, the BEM includes weight of the airframe, engines and all installed optional equipment and:
#236. What is the DOM of an a/c?
#237. The coordinates of a position are 48 50'N 002 16.5'E. What are the coordinates of its antipode position?
#238. At the magnetic equator:
#239. The selection on an IRS mode panel are used in the following order:
#240. Which of the following statement is correct concerning turning errors in DRMC:
#241. Equivalent of 70 m/sec is approximately:
#242. An a/c equipped with INS files with INS1 coupled with A/P 1. Both INS are navigating from wpt A to B. The INS CDU show: XTK on INS 1=0, XTK on INS 2 8L What can be deduced from this information?
#243. To indicate in ATC flight plan that you would overfly waypoint Tango at 350kts at 280, you will write?
#244. Nominal scale of a Lambert chart is:
#245. RF scale is 1) 1: 5000000 & RF scale 2) is 1: 250000. Which is large scale chart?
#246. To remove co-efficient + B, micro adjuster should be turned:
#247. If deviation is - 3 deg & variation is 3deg E:
#248. True track 192* variation 7E, drift angle 5* left. What magnetic heading is required to maintain given track?
#249. Heading 060* (M) variation 8* W drift angle 4* Right. Find true track:
#250. If SELCAL is prescribed , in which section of ATC flight plan will SELCAL code be entered?
#251. You are flying VER & uncertain of your position; what's the best course of action?
#252. What is the min. temperature according to ISA?
#253. At a coastal airfield, with the runway parallel to the coastline. You are downwind over the sea with the runway to your right. On a warm summer afternoon, what would you expect the wind to be on finals?
#254. The temperature at the surface is 15°C, the temperature at 1000m is 13°C. Is the atmosphere
#255. Altostratus is
#256. Which of the following would give you the worst airframe icing?
#257. Small super cooled water droplets hit the aerofoil, will it
#258. In a METAR you see the coding R16/P1300. What does this imply?
#259. If at 0600 the temperature and dew point were recorded as T= - 0.5 and Td = - 1.5, how would a METAR record this?
#260. What causes wind?
#261. What is the approximate height of the 250hPa level?
#262. Several aircraft report clear air turbulence in a certain area en route
#263. What is the flight hazard associated with the Harmattan?
#264. Where are icing conditions on a runway specified?
#265. Where are icing conditions on route specified?
#266. If flying in the Alps with a Foehn effect from the south
#267. If flying en route and you encounter moderate turbulence with convective clouds and you decide to continue, you should
#268. You are flying from Madrid (QNH 1012) to Paris (QNH 1015) at FL 80. If your true altitude and indicated altitude remain the same then
#269. If you are flying on a QNH 1009 on very cold day and you circle the top of a peak in the Alps, your altimeter will read
#270. ICAO statement no diversion necessary, de-icing is not required or is effective; the icing in this case is
#271. Aircraft A has a sharp leading edge and a thin aerofoil. Aircraft B has a thick cambered wing aerofoil. If they are flying at the same TAS into clouds with small super cooled water droplets then
#272. What is subsidence?
#273. If an Isohypse on a surface pressure chart of 500hPa shows a figure of 522, this indicates
#274. Moderate turbulence can be expected in
#275. The polar front jet stream in summer compared to winter in the Northern Hemisphere moves
#276. The Bora is a
#277. RVR is
#278. Comparing the surface wind to the 3000ft wind
#279. In which air mass can extreme cold temperatures be found?
#280. Up and down going draughts in a thunderstorm occur in which stage?
#281. Relative humidity increases in
#282. Super cooled water droplets are found in
#283. Which of the following, with no Orographic intensification, will give rise to light to moderate icing conditions?
#284. If an active cold front is approaching what will the altimeter read on a parked aircraft shortly before the front arrives?
#285. Which of the following METARs at 1850UTC will most likely give fog formation over the coming night?
#286. What would be reflected to radar?
#287. A jet stream with a wind speed of 350kts
#288. Turbulence is worst in a Jet stream
#289. If you fly at right angles to a jet stream in Europe with a decreasing outside air temperature, you will experience
#290. Low level wind shear is likely to be greatest
#291. The North African rains occur
#292. TEMPO TS indicates
#293. What happens in a warm occlusion?
#294. Which of the following gives conditionally unstable conditions?
#295. A mass of unsaturated air is forced to rise till just under the condensation level. It then settles back to its original position
#296. Which of the radiosonde diagrams below will show low stratus?
#297. What is a microburst?
#298. The high bringing tropical continental air masses to Europe in summer
#299. What most likely gives freezing rain over Central Europe?
#300. Which of the cuts in the plan view of the polar front depression best represents the profile view?
#301. On a polar front depression, the point of occlusion moves mainly in which direction in the Northern Hemisphere?
#302. In the Northern Hemisphere between lat. 35°N - 65°N in the north Atlantic during winter, the principle land based depression affecting the region is located at
#303. The ITCZ is best described as
#304. When would you most likely find cold occlusions across central Europe?
#305. Clear ice is most likely to form
#306. How do you calculate the lowest flight level?
#307. TRS off Somalia are called
#308. Which cloud would you encounter the most intensive rain?
#309. What height is the tropopause and at what temperature?
#310. Where do you get freezing rain?
#311. Flying from Dakar to Rio de Janeiro in winter where would you cross the ITCZ?
#312. Where are polar front depressions located?
#313. Which of the following is worst for icing?
#314. Which of the following is worst for icing?
#315. With low pressures dominating the Med, which of the following would likely be found in central Europe?
#316. Which of the following will give the greatest difference between temperature and dew point?
#317. CB cloud in summer contains
#318. Using the diagram below you are on a flight from A to B at 1500 ft. Which statement is true?
#319. Solar radiation heats the atmosphere by
#320. How are CBs that are not close to other CBs described on a SIGMET?
#321. When do you mainly get cold occlusions?
#322. A coded SIGMET message for Athens reads “TS W Athenia MOV E”
#323. In a very deep depression in Iceland, the likely weather is
#324. What affects how much water vapour the air can hold?
#325. In a METAR/TAF what is VV?
#326. In an METAR the cloud height is above
#327. Aerodrome at MSL, QNH is 1022. QFF is
#328. Air at the upper levels of the atmosphere is diverging. What would you expect at the surface?
#329. What happens to the stability of the atmosphere in an inversion? (Temp increasing with height)
#330. What happens to stability of the atmosphere in an isothermal layer? (Temp constant with height)
#331. Air temperature in the afternoon is +12°C with a dew point of +5°C. What temperature change must happen for saturation to occur?
#332. What is the gradient of a warm front?
#333. Subsidence would be described as
#334. What is the technical term for an increase in temperature with altitude?
#335. What units are used to measure vertical wind shear?
#336. The Pampero is
#337. If you fly from Bombay to Karachi in summer you might experience a 70kt tailwind and the same flight in winter experiences a headwind. This is due to
#338. Why is the “Icelandic low” more intense in winter?
#339. What causes the formation of aircraft contrails at certain altitudes?
#340. QNH is 1003. At FL100 true altitude is 10,000ft. Is it
#341. Winds in western India
#342. Ice pellets on the ground are evident that
#343. You have to fly through a warm front. The freezing level in the warm air is at 10,000ft and the freezing layer in the cold air is at 2,000ft. Where are you least likely to encounter freezing rain?
#344. You are flying at FL170. The pressure level which is closest to you is the
#345. When you have icing conditions forecast on-route, on what chart would you find this information?
#346. The average duration of a microburst
#347. How is QFE determined from QNH?
#348. Which cloud would produce showers?
#349. What clears radiation fog?
#350. QFE is 1000hPa with an airfield elevation of 200m AMSL. What is QNH?
#351. With the approach of a warm front
#352. With the approach of a cold front, temperature will
#353. On a surface weather chart, isobars are lines of
#354. What is the effect of a strong low level inversion?
#355. A moist stable air mass is forced to rise against a mountain range. What might you expect?
#356. Air temperature is 12°C, Dew point is 10°C and the sea temperature is 8°C. What might you expect if the air is blown over the sea?
#357. A cold pool over land in summer would give rise to:
#358. Near industrial areas with lots of smoke what the worst situation is for met vis:
#359. Upper level winds are forecast in significant weather charts as:
#360. Melbourne in July will experience:
#361. How often are METAR’s issued at Main European Airfields?
#362. METAR winds are meaned over the.............. period immediately preceding the time of observation.
#363. Main TAF’s at large aerodromes are valid for approximately:
#364. What are the TRS of the west coast of Africa called?
#365. The most severe in-flight icing occurs in:
#366. Which of the following constituents in the atmosphere has the greatest effect on the weather?
#367. When would you mostly likely get fair weather Cu?
#368. RVR is defined as being
#369. What type of cloud extends into another level?
#370. Ceilometers measure
#371. In a METAR, the pressure group represents
#372. On a Station circle decode, the cloud cover is divided into
#373. Which of the following is true? QNH is:
#374. When does Darwin (Australia. experience TRS?
#375. Radiation fog extends from the surface to:
#376. Flying from Marseilles to Palma you discover your true altitude is increasing, but oddly the QNH is identical at both places. What could be the reason?
#377. Hurricanes in the Caribbean generally move
#378. Low level inversions
#379. What are the TRS off the coast of Madagascar called and when would you expect to find them?
#380. A forecast trend
#381. On rare occasions TS can be found along the warm front. What conditions could lead to this?
#382. QNH is 1030. Aerodrome is 200m AMSL. What is QFF?
#383. Where are down draughts predominant in a thunderstorm?
#384. If an Aerodrome is 1500ft AMSL on QNH 1038, what will the actual height AGL to get to FL75?
#385. What is FG VV100?
#386. The line connecting C to D crosses which type of front?
#387. What is B?
#388. On a particular day the PFJ runs north to south in the Northern Hemisphere
#389. A 350 kt jet stream is
#390. Why do TRS tend to form in the western side of tropical oceans?
#391. Where would an anemometer be placed?
#392. Altimeter set to 1023 at aerodrome. On climb to altitude the SPS is set at transition altitude. What will indication on altimeter do on resetting to QNH?
#393. 90km/hr wind in kts is:
#394. The ITCZ is best described as:
#395. When landing at Dakar in July, the weather to be expected is:
#396. When is the Hurricane season in the Caribbean?
#397. An aircraft is stationary on the ground. With the passage of an active cold front its altimeter will show:
#398. What is the average vertical extent of radiation fog?
#399. Where is clear ice most likely in a Cb?
#400. You have to make an emergency ditch at sea. The QNH of a nearby island airfield is 1025mb, airfield elevation 4000ft. The temp is -20°C. With 1025 set on your sub-scale, on ditching the altimeter will read:
#401. Which of the following will indicate medium level instability, possibly leading to thunderstorms?
#402. Radiation fog extends to:
#403. What is reported as precipitation?
#404. At FL60 what pressure chart would you use?
#405. On a descent through cloud cover at high level you notice a white, cloudy or opaque, rough powder like substance on the leading edge of the wing. This contamination is likely to be:
#406. In association with CB in temperate latitudes, at about what levels can hail be anticipated?
#407. Moderate Turbulence
#408. ATIS reports:
#409. +TSRA come from what sort of cloud?
#410. Flying 2500 ft below core of jet, with temperature increasing in the Southern Hemisphere, where does the wind come from?
#411. Secondary depressions move
#412. What temperature and pressure conditions would be safest to ensure that your flight level clears all the obstacles by the greatest margin?
#413. In which part of the world are TRS most frequent?
#414. As an active cold front passes, the altimeter of an a/c parked on the apron
#415. Where does a TRS gain its energy from?
#416. What is the height and temperature of Tropopause?
#417. What is the Easterly wave?
#418. Where is icing worst?
